P0C3C – DC/DC Converter ‘A’ Temperature Sensor Intermittent/Erratic

P0C3C Possible Causes

  • Faulty inverter with converter assembly

What Does It Mean?

How to Fix Code P0C3C

Check the “Possible Causes” listed above. Visually inspect the related cable harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0C3C Possible Symptoms

Check engine light on (or service engine soon warning light)

P0C3C Meaning

The MG ECU detects the boost converter temperature using the temperature sensor integrated into the boost converter. The boost converter using the temperature sensor delivers a voltage that varies between 0.5 and 4.5 V in response to temperature changes. The higher the boost converter temperature, the lower the output voltage. Conversely, the lower the boost converter temperature, the higher the output voltage. The MG ECU limits the load based on signals sent by the boost converter temperature sensor to help prevent overheating. The MG ECU also detects malfunctions in the boost converter temperature sensor and its wiring.

P0C3D – Converter B DC/DC Temperature Sensor Circuit

P0C3D Possible Causes

  • Faulty inverter with converter assembly

What does it mean?

How to fix P0C3D code

Check the “possible causes” listed above. Visually inspect the associated cable harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0C3D Possible Symptoms

Check engine light on (or service engine soon warning light)

P0C3D Meaning

The MG ECU detects the boost converter temperature using the temperature sensor integrated into the boost converter. The boost converter using the temperature sensor delivers a voltage that varies between 0.5 and 4.5 V in response to temperature changes. The higher the boost converter temperature, the lower the output voltage. Conversely, the lower the boost converter temperature, the higher the output voltage. The MG ECU limits the load based on signals sent by the boost converter temperature sensor to help prevent overheating. The MG ECU also detects malfunctions in the boost converter temperature sensor and its wiring.

P0C3E – DC/DC Converter ‘B’ Temperature Sensor Range/Performance

P0C3E Possible Causes

  • Faulty inverter with converter assembly

What Does It Mean?

How to Fix P0C3E Code

Check the “possible causes” listed above. Visually inspect the cable harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0C3E Possible Symptoms

Check engine light on (or service engine soon warning light)

P0C3E Meaning

The MG ECU detects the boost converter temperature using the temperature sensor integrated into the boost converter. The boost converter using the temperature sensor delivers a voltage that varies between 0.5 and 4.5 V in response to temperature changes. The higher the boost converter temperature, the lower the output voltage. Conversely, the lower the boost converter temperature, the higher the output voltage. The MG ECU limits the load based on signals sent by the boost converter temperature sensor to help prevent overheating. The MG ECU also detects malfunctions in the boost converter temperature sensor and its wiring.

P0C3F – Low “B” DC/DC Converter Temperature Sensor

P0C3F Possible Causes

  • Faulty inverter with converter assembly

What Does It Mean?

How to Fix P0C3F Code

Check the “possible causes” listed above. Visually inspect the cable harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0C3F Possible Symptoms

Check engine light on (or service engine soon warning light)

P0C3F Meaning

The MG ECU detects the boost converter temperature using the temperature sensor integrated into the boost converter. The boost converter using the temperature sensor delivers a voltage that varies between 0.5 and 4.5 V in response to temperature changes. The higher the boost converter temperature, the lower the output voltage. Conversely, the lower the boost converter temperature, the higher the output voltage. The MG ECU limits the load based on signals sent by the boost converter temperature sensor to help prevent overheating. The MG ECU also detects malfunctions in the boost converter temperature sensor and its wiring.

P0C40 – High Converter DC/DC “B” Temperature Sensor

P0C40 Possible Causes

  • Faulty inverter with converter assembly

What Does It Mean?

How to Fix Code P0C40

Check the “Possible Causes” listed above. Visually inspect the cable harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0C40 Possible Symptoms

Check engine light on (or service engine soon warning light)

P0C40 Meaning

The MG ECU detects the boost converter temperature using the temperature sensor integrated into the boost converter. The boost converter using the temperature sensor delivers a voltage that varies between 0.5 and 4.5 V in response to temperature changes. The higher the boost converter temperature, the lower the output voltage. Conversely, the lower the boost converter temperature, the higher the output voltage. The MG ECU limits the load based on signals sent by the boost converter temperature sensor to help prevent overheating. The MG ECU also detects malfunctions in the boost converter temperature sensor and its wiring.

P0C41 – Intermittent / Irregular DC/DC Converter “B” Temperature Sensor

P0C41 Possible Causes

  • Faulty inverter with converter assembly

What Does It Mean?

How to Fix Code P0C41

Check the “possible causes” listed above. Visually inspect the cable harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0C41 Symptoms

Possible

Check engine light on (or service engine soon warning light)

P0C41 Meaning

The MG ECU detects the boost converter temperature using the temperature sensor integrated into the boost converter. The boost converter using the temperature sensor delivers a voltage that varies between 0.5 and 4.5 V in response to temperature changes. The higher the boost converter temperature, the lower the output voltage. Conversely, the lower the boost converter temperature, the higher the output voltage. The MG ECU limits the load based on signals sent by the boost converter temperature sensor to help prevent overheating. The MG ECU also detects malfunctions in the boost converter temperature sensor and its wiring.

P0C42 – Hybrid Battery Pack Coolant Temperature Sensor Circuit

P0C42 Possible Causes

  • Faulty hybrid battery pack coolant temperature sensor
  • Hybrid battery pack coolant temperature sensor harness is open or shorted
  • Poor electrical connection in hybrid battery pack coolant temperature sensor circuit

What Does It Mean?

How to Fix Code P0C42

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

P0C42 Symptoms

Possible symptoms

Illuminated check engine light (or service engine soon warning light)

P0C42 Meaning

The engine control module (ECM) monitors the hybrid battery pack coolant temperature sensor. The ECM sets the OBDII code when the hybrid battery pack coolant temperature sensor does not meet factory specifications.

Hybrid Battery Assembly Coolant Temperature Sensor Circuit Range/Performance

P0C43 Possible Causes

  • Faulty hybrid battery pack coolant temperature sensor
  • Hybrid battery pack coolant temperature sensor harness is open or shorted
  • Poor electrical connection in hybrid battery pack coolant temperature sensor circuit

What Does It Mean?

How to Fix Code P0C43

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0C43 Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P0C43 Meaning

The engine control module (ECM) monitors the hybrid battery pack coolant temperature sensor. The ECM sets the OBDII code when the hybrid battery pack coolant temperature sensor does not meet factory specifications.

P0C44 – Lower Hybrid Battery Block Coolant Temperature Sensor Circuit

P0C44 Possible Causes

  • Faulty hybrid battery pack coolant temperature sensor
  • Hybrid battery pack coolant temperature sensor harness is open or shorted
  • Poor electrical connection in hybrid battery pack coolant temperature sensor circuit

What Does It Mean?

How to Fix Code P0C44

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0C44 Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P0C44 Meaning

The engine control module (ECM) monitors the hybrid battery pack coolant temperature sensor. The ECM sets the OBDII code when the hybrid battery pack coolant temperature sensor does not meet factory specifications.

P0C45 – High Voltage Hybrid Battery Block Coolant Temperature Sensor Circuit

P0C45 Possible Causes

  • Faulty hybrid battery pack coolant temperature sensor
  • Hybrid battery pack coolant temperature sensor harness is open or shorted
  • Hybrid battery pack coolant temperature sensor circuit poor electrical connection

What Does It Mean?

How to Fix Code P0C45

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0C45 Possible Symptoms

Check engine light on (or service engine soon warning light)

P0C45 Meaning

The engine control module (ECM) monitors the hybrid battery pack coolant temperature sensor. The ECM sets the OBDII code when the hybrid battery pack coolant temperature sensor is not within factory specifications.